I can't get my Orange Canvas to work, because I have a non ASCII letter in my User name.Any suggestion?

Error code (see last line):

There were problems importing the following widgets: OWC45Tree: c45 is not found OWItemsetViz: No module named OWNetworkCanvas OWRScript: No module named rpy2.robjects OWLinProj3D: No module named OpenGL OWNxExplorer3D: No module named OWNxExplorerQt OWScatterPlot3D: No module named OpenGL OWSphereviz3D: No module named OpenGLThe following widgets could not be imported and will not be available: OWSphereviz3D, OWScatterPlot3D, OWLinProj3D, OWC45Tree, OWNxExplorer3D.The following prototype widgets could not be imported and will not be available: OWRScript, OWItemsetViz.

This solution did not work for me. I investigated the issue, and found that the 'Ø' character in my Windows username caused the error. I resolved the issue by editing the line in genericpath.py from "os.stat(path) to os.stat(Unicode(path))